Finding the Fourth Proportional to 76.92, 105.89 and 69.15

Step by Step Solution

1. Step 1: Write the proportion equation
   76.92 : 105.89 = 69.15 : x
2. Step 2: Convert to fraction form
   76.92/105.89 = 69.15/x
3. Step 3: Cross multiply
   76.92x = 105.89 × 69.15
4. Step 4: Simplify right side
   76.92x = 7,323.03
5. Step 5: Solve for x
   x = 7,323.03/76.92
6. Step 6: Final answer
   x = 95.20